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Information Theory

Series “Information Theory”: it starts with “01 - Shannon Entropy”. Definition and properties of Shannon entropy: quantitative measure of a source's uncertainty. Formula, joint and conditional entropy, chain rule.

This series collects 6 articles (approximately 63 minutes of total reading time), designed for a level Advanced. The main topics covered are teoria informazione, entropia, shannon, teoria dell'informazione.

6Articles63 minTotal reading timeAdvancedLevel
teoria informazioneentropiashannonteoria dell'informazioneinformazione mutuadivergenza kullback-leibler

Series Articles

  1. 1

    01 - Shannon Entropy

    Definition and properties of Shannon entropy: quantitative measure of a source's uncertainty. Formula, joint and conditional entropy, chain rule.

  2. 2

    02 - Mutual Information and Kullback-Leibler Divergence

    Mutual information I(X;Y): how much Y reduces uncertainty about X. Kullback-Leibler divergence: measure of distance between distributions.

  3. 3

    03 - Source Coding: Huffman and Shannon's First Theorem

    Prefix codes and Kraft inequality. Huffman code construction. Shannon's first theorem: average length of any code >= H(X). Optimal compression.

  4. 4

    04 - Noisy channels and capacity: from error probability to Shannon's second theorem

    The binary symmetric channel, channel capacity, and Shannon's second theorem: the foundation of reliable communication over real channels.

  5. 5

    05 - Error-correcting codes: Hamming distance, Hamming and Singleton bounds

    Hamming distance, linear block codes, Hamming and Singleton bounds for error correction: from theory to practice on disks and networks.

  6. 6

    06 - Lossy compression and rate-distortion: Shannon's third theorem and model quantization

    Shannon's rate-distortion theory: compression with distortion constraint, the third theorem, and the bridge to machine learning model quantization.